Hi Jiri, kernel test robot noticed the following build warnings: [auto build test WARNING on powerpc/next] [also build test WARNING on powerpc/fixes s390/features linus/master v6.7-rc2 next-20231124] [cannot apply to tip/x86/core arm64/for-next/core] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jiri-Bohac/kdump-implement-reserve_crashkernel_cma/20231125-082724 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next patch link: https://lore.kernel.org/r/ZWEAPXiCCgAf1WrY%40dwarf.suse.cz patch subject: [PATCH 1/4] kdump: add crashkernel cma suffix config: alpha-randconfig-r081-20231125 (https://download.01.org/0day-ci/archive/20231125/202311251303.71yrbT6l-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231125/202311251303.71yrbT6l-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311251303.71yrbT6l-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): kernel/crash_core.c: In function 'parse_crashkernel': >> kernel/crash_core.c:319:28: warning: unused variable 'cma_base' [-Wunused-variable] 319 | unsigned long long cma_base; | ^~~~~~~~ vim +/cma_base +319 kernel/crash_core.c 302 303 /* 304 * That function is the entry point for command line parsing and should be 305 * called from the arch-specific code. 306 * 307 * If crashkernel=,high|low is supported on architecture, non-NULL values 308 * should be passed to parameters 'low_size' and 'high'. 309 */ 310 int __init parse_crashkernel(char *cmdline, 311 unsigned long long system_ram, 312 unsigned long long *crash_size, 313 unsigned long long *crash_base, 314 unsigned long long *low_size, 315 unsigned long long *cma_size, 316 bool *high) 317 { 318 int ret; > 319 unsigned long long cma_base; 320 321 /* crashkernel=X[@offset] */ 322 ret = __parse_crashkernel(cmdline, system_ram, crash_size, 323 crash_base, NULL); 324 #ifdef CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION 325 /* 326 * If non-NULL 'high' passed in and no normal crashkernel 327 * setting detected, try parsing crashkernel=,high|low. 328 */ 329 if (high && ret == -ENOENT) { 330 ret = __parse_crashkernel(cmdline, 0, crash_size, 331 crash_base, suffix_tbl[SUFFIX_HIGH]); 332 if (ret || !*crash_size) 333 return -EINVAL; 334 335 /* 336 * crashkernel=Y,low can be specified or not, but invalid value 337 * is not allowed. 338 */ 339 ret = __parse_crashkernel(cmdline, 0, low_size, 340 crash_base, suffix_tbl[SUFFIX_LOW]); 341 if (ret == -ENOENT) { 342 *low_size = DEFAULT_CRASH_KERNEL_LOW_SIZE; 343 ret = 0; 344 } else if (ret) { 345 return ret; 346 } 347 348 *high = true; 349 } 350 351 /* 352 * optional CMA reservation 353 * cma_base is ignored 354 */ 355 if (cma_size) 356 __parse_crashkernel(cmdline, 0, cma_size, 357 &cma_base, suffix_tbl[SUFFIX_CMA]); 358 #endif 359 if (!*crash_size) 360 ret = -EINVAL; 361 362 return ret; 363 } 364 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
